About 95 percent of the vendors at this weekend’s show, he says, are required by law to run background checks since they are licensed dealers.

However, the other 5 percent of vendors are private citizens. Several Florida counties, including Pinellas and Hillsborough, have passed ordinances that would require private citizens to run background checks as well.

But Fernandez says tightening the "loophole" still wouldn't have stopped the massacre at Stoneman Douglas.

“This was a mental health issue. This is someone who should have been identified from the beginning by law enforcement,” says Fernandez.

FLORIDA GUN SHOW I Organizers say they saw record numbers yesterday with close to 7k people showing up and they expect more today! They also tell me they do not support a ban on assault rifles but more laws for mental health. @10NewsWTSPpic.twitter.com/95YGMKGl3E

Outside the Florida Fair Grounds, Sergio Gonzalez and his son protested in support of banning assault rifles.

Sergio Gonzalez and his son are outside the Florida State Fairgrounds protesting against the gun show. He says a ban on assault rifles is needed along with fixing the “gun show loophole” @10NewsWTSPpic.twitter.com/35274QeKui

“It doesn't have to be my child, I'd grieve for any child killed in a mass shooting that's senseless. If you want to protect yourself, get yourself a revolver or how about learning how to fight,” says Gonzalez.